<!DOCTYPE html>
<style type="text/css">
    #box { display: none; }
</style>
<div id="box"></div>
<br id="br"/>
<script src="include.js"></script>
<script>
    test(() => {
        const rect = document.getElementById("box").getBoundingClientRect();
        println(JSON.stringify(rect));

        const br_rect = document.getElementById("br").getBoundingClientRect();
        println(JSON.stringify(br_rect));
    });
</script>
